Messages in this thread | | | Date | Wed, 21 Sep 2022 09:14:58 +0800 | From | kernel test robot <> | Subject | [ammarfaizi2-block:paulmck/linux-rcu/dev.2022.09.03a 36/36] kernel/rcu/srcutree.c:647:1: error: use of undeclared identifier 'u' |
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tree: https://github.com/ammarfaizi2/linux-block paulmck/linux-rcu/dev.2022.09.03a head: 607762184099b5d0b6765f69673fafa1d7eb4d30 commit: 607762184099b5d0b6765f69673fafa1d7eb4d30 [36/36] srcu: Check for consistent per-CPU per-srcu_struct NMI safety config: arm-randconfig-r013-20220921 (https://download.01.org/0day-ci/archive/20220921/202209210942.YUFSaizJ-lkp@intel.com/config) compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 791a7ae1ba3efd6bca96338e10ffde557ba83920) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install arm cross compiling tool for clang build # apt-get install binutils-arm-linux-gnueabi # https://github.com/ammarfaizi2/linux-block/commit/607762184099b5d0b6765f69673fafa1d7eb4d30 git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block git fetch --no-tags ammarfaizi2-block paulmck/linux-rcu/dev.2022.09.03a git checkout 607762184099b5d0b6765f69673fafa1d7eb4d30 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash kernel/rcu/
If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
>> kernel/rcu/srcutree.c:647:1: error: use of undeclared identifier 'u' u); ^ 1 error generated.
vim +/u +647 kernel/rcu/srcutree.c
628 629 /* 630 * Check for consistent NMI safety. 631 */ 632 static void srcu_check_nmi_safety(struct srcu_struct *ssp, bool nmi_safe) 633 { 634 int nmi_safe_mask = 1 << nmi_safe; 635 int old_nmi_safe_mask; 636 struct srcu_data *sdp; 637 638 if (!IS_ENABLED(CONFIG_PROVE_RCU)) 639 return; 640 sdp = raw_cpu_ptr(ssp->sda); 641 old_nmi_safe_mask = READ_ONCE(sdp->srcu_nmi_safety); 642 if (!old_nmi_safe_mask) { 643 WRITE_ONCE(sdp->srcu_nmi_safety, nmi_safe_mask); 644 return; 645 } 646 WARN_ONCE(old_nmi_safe_mask != nmi_safe_mask, "CPU %d old state %d new state %d\n", sdp->cpu, old_nmi_safe_mask, nmi_safe_mask); > 647 u); 648 } 649
-- 0-DAY CI Kernel Test Service https://01.org/lkp
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